8139056 has 40 divisors (see below), whose sum is σ = 17436384. Its totient is φ = 3660800.

The previous prime is 8139031. The next prime is 8139059. The reversal of 8139056 is 6509318.

It is a super-2 number, since 2×8139056² = 132488465142272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8139059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5606 + ... + 6906.

Almost surely, 2^8139056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8139056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8718192).

8139056 is an abundant number, since it is smaller than the sum of its proper divisors (9297328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8139056 is a wasteful number, since it uses less digits than its factorization.

8139056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 8139056 is about 2852.9030828263. The cubic root of 8139056 is about 201.1521500066.

The spelling of 8139056 in words is "eight million, one hundred thirty-nine thousand, fifty-six".